Pith Number

pith:HNA2IBQ6

pith:2010:HNA2IBQ6ATBZVY4J747XJRFSF3

not attested not anchored not stored refs pending

Uniquely constructed figures

Anton Petrunin, Serge Rukshin

arxiv:1004.0470 v1 · 2010-04-03 · math.MG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HNA2IBQ6ATBZVY4J747XJRFSF3}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T02:24:17.771840Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3b41a4061e04c39ae389ff3f74c4b22ede667016b9b71bcc6135cea3659ae72a

Aliases

arxiv: 1004.0470 · arxiv_version: 1004.0470v1 · doi: 10.48550/arxiv.1004.0470 · pith_short_12: HNA2IBQ6ATBZ · pith_short_16: HNA2IBQ6ATBZVY4J · pith_short_8: HNA2IBQ6

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/HNA2IBQ6ATBZVY4J747XJRFSF3 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 3b41a4061e04c39ae389ff3f74c4b22ede667016b9b71bcc6135cea3659ae72a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "19aacbcd6b318539c65178962276f154f5a91b005e5ddeb69af34b055451a8f0",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/publicdomain/",
    "primary_cat": "math.MG",
    "submitted_at": "2010-04-03T22:07:03Z",
    "title_canon_sha256": "c3acdd66a74fbbd9218eddcdaeb3465247a8c3542119c55032f15f6da93cfb38"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.0470",
    "kind": "arxiv",
    "version": 1
  }
}